Green pool came with the house, Almost clear now.

NTRyder

New member
Jul 14, 2020
4
Prole, Iowa
Hello, new around here, great reading so far. I inherited a troubled pool with the house we bought. I know now I have created some of my own problems but it seems to be getting better. Long story short, we bought a house with a pool last year. The liner was mostly in the bottom of the hole and was pretty nasty. We were going to put a liner in ourselves and the seller was going to give us 5k toward the pool repairs. Well, we used VA for financing and they wanted to see the pool operate so the seller put in the cheapest liner she could find, filled it and showed them it worked....then just left it. We moved in late summer and fought it all last year with algae. The filter cartridges were ancient and barely worked we had to clean them all the time and they needed replaced. By the end of the season we were still fighting algae and out of frustration and coming winter freeze we put the mesh cover on and left it. This spring due to unforseen circumstances we are just now opening the pool. Over the winter I ordered a new VS Pump motor but the supplier shipped the wrong one and I am waiting on the correct one at the moment. We ordered new filter cartridges, a SWG and replumbed everything at the pump pad and suction side. This pool has inground lines but nothing goes through the liner, all of the plumbing comes up out of the concrete and goes over the side into the water. The pool is really old and was built with a concrete bottom and concrete block walls. it is a 20x40 with a 3ft shallow end and 8ft deep end, one constant slope. The plumbing consists of a single buried 1.5 schedule 80 for suction and another for return. The return splits into two returns along the shallow end. The suction side is a pipe that reaches the bottom with a Tee on the end, and a no niche skimmer. I changed them this year and added 2, 3 way valves so that I can control the skimmer, "main drain" and vac port all seperately. These all junction together and go into one 1.5 buried suction line. Therefore, Max flow rate is around 45-50gpm with 10psi on the filter. All of the plumbing with the exception of the buried stuff is now 2in.

Now to the good stuff. Of course due to the poor closing last year and the delayed opening this year, the pool looked more like a shallow dark green pond and smelled like one too. It was full of leaves and debris, had lots of stuff growing in it and was a total mess. If I knew then what I know now, I would have just drained and refilled. Too late. We have made some mistakes along the way but we finally have it mostly blue, but very cloudy. Along with lots of scrubbing and fishing Crud out of it, we have dumped nearly 45lbs of cal hypo in to get to this point and never had any FC. I am quite certain we had ammonia in there but seem to be over that hump now. So last night I added 3 gal 12.5% Chlorine and checked after 10 minutes. Results with the TF-100 were:

FC 1.5
CC 0.5
CH 250
TA 120
CYA 0
PH 6.8
Temp ~75

I also added 4 lbs sodium carbonate to bring PH up and another 3 gal Cl to bring chlorine up to ~12FC.

This morning I had:
FC 6
CC 2
CH 250
TA 120
CYA 0
PH 7.2
Temp ~76

I brushed the sides and bottom, dumped in 6 more gal Cl and 4lbs Sodium Carbonate, retested in an hour or so. It was overcast all morning and the first test the pool was still in the shadow of the house.
FC 15
CC 0.5
CH 250
TA 170
CYA 0
PH 7.5
Temp ~77

Thinking I am over the ammonia issue now so added ~5 lbs CYA in a sock in the skimmer. After about 4 hours I checked again.
FC 8
CC 0.5
CH 250
TA 170
CYA still 0 but getting slightly cloudy in the test tube.
PH 7.2
Temp ~77

I think I am trying to raise CYA now to prep for a SLAM. Also began to aerate the water to help bring PH up due to adding CYA. Water is almost the correct color but is so cloudy we can't see the bottom, I suspect this is from all the Cal-Hypo and will eventually clear. Anyone have anything additional to add? Am I on the right track? I know that may be lots to digest.

THANK YOU to everyone on this forum as I have been reading for several days now and have learned so much!

I tried to add all the specs into my signature but it wouldn't let me, said something went wrong, maybe looked like spam.??? So here they are.

33k IG vinyl, 3/4 hp Super II pump, System 3 300 sqft cartridge filter, The Pool Cleaner 4wd. Soon to be VS pump and SWG.
 

Mdragger88

Bronze Supporter
Jun 1, 2018
1,919
Hernando, Ms
Pool Size
26000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Intex Krystal Clear
Welcome to tfp & great job on getting a good test kit!
Leave the ph @ 7.2 & slam @10ppm fc assuming your 20ppm cya is there.
Cya won’t show up on the test for a day or so if you used the sock method.
ph test is unreliable at fc levels over 10 that’s why you adjust it to 7.2 before you begin slam.
Read & follow the entire SLAM Process
Using only liquid chlorine. Testing fc & adding lc multiple times daily. Along with brushing & vacuuming.
You’ll only need to focus on fc & cc for the duration of slam - no need to test other parameters except maybe cya in a day or so & add enough to get to 30 ppm total Then you can proceed @ fc target of 12.
If you haven’t already, read ABCs of Pool Water Chemistry
You look to be on the right track 👍🏻
If u have questions just ask😊
 

NTRyder

New member
Jul 14, 2020
4
Prole, Iowa
Good to hear! I've read all of the SLAM process, ABC's, Pool School...and lots of posts as well. Lots of information here. Now if I could just get the Signature to work. Tried to start a conversation with the admin who welcomed me here and it said the same thing, error...possible spam or inappropriate content. I typed "test" and tried, same thing. I didn't know "test" was spam or inappropriate...:LOL:
 
  • Haha
Reactions: Mdragger88

NTRyder

New member
Jul 14, 2020
4
Prole, Iowa
Got the signature to work now. Saw your test, Thanks! I'll have to get some pictures of this pool and put them up later today. FC was 7.5 this morning. That was from 12 @ 7pm to 9am. Added Cl to bring it back up still cloudy.
 
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